100% width in React Native Flexbox
Simply add alignSelf: “stretch” to your item’s stylesheet. line1: { backgroundColor: ‘#FDD7E4’, alignSelf: ‘stretch’, textAlign: ‘center’, },
react-native
Unable to load script.Make sure you are either running a Metro server or that your bundle ‘index.android.bundle’ is packaged correctly for release
You haven’t started the bundler yet. Run npm start or react-native start in the root directory of your project before react-native run-android.
React Native: How to select the next TextInput after pressing the “next” keyboard button?
Set the second TextInput focus, when the previous TextInput‘s onSubmitEditing is triggered. Try this Adding a Ref to second TextInput ref={(input) => { this.secondTextInput = input; }} Bind focus function to first TextInput‘s onSubmitEditing event. onSubmitEditing={() => { this.secondTextInput.focus(); }} Remember to set blurOnSubmit to false, to prevent keyboard flickering. blurOnSubmit={false} When all done, it … Read more
How to use comments in React
Within the render method comments are allowed, but in order to use them within JSX, you have to wrap them in braces and use multi-line style comments. <div className=”dropdown”> {/* whenClicked is a property not an event, per se. */} <Button whenClicked={this.handleClick} className=”btn-default” title={this.props.title} subTitleClassName=”caret”></Button> <UnorderedList /> </div> You can read more about how comments … Read more
Hide header in stack navigator React navigation
UPDATE as of version 5 As of version 5 it is the option headerShown in screenOptions Example of usage: <Stack.Navigator screenOptions={{ headerShown: false }} > <Stack.Screen name=”route-name” component={ScreenComponent} /> </Stack.Navigator> If you want only to hide the header on 1 screen you can do this by setting the screenOptions on the screen component see below … Read more
How can I generate an apk that can run without server with react-native?
Following Aditya Singh’s answer the generated (unsigned) apk would not install on my phone. I had to generate a signed apk using the instructions here. The following worked for me: $ keytool -genkey -v -keystore my-release-key.keystore -alias my-key-alias -keyalg RSA -keysize 2048 -validity 10000 Place the my-release-key.keystore file under the android/app directory in your project … Read more
What is the difference between Expo and React Native?
When you write code in Expo you are writing React Native code. Expo has two main pieces: Expo CLI (expo-cli): a developer tool for creating projects, viewing logs, opening on your device, publishing, etc. Expo client: an app on your phone that lets you open your projects while you’re working on them, without needing to … Read more
ReactNative: how to center text?
From headline‘ style remove height, justifyContent and alignItems. It will center the text vertically. Add textAlign: ‘center’ and it will center the text horizontally. headline: { textAlign: ‘center’, // <– the magic fontWeight: ‘bold’, fontSize: 18, marginTop: 0, width: 200, backgroundColor: ‘yellow’, }
How do you debug React Native?
Cmd+D from within the Simulator. It’ll popup Chrome and from there you can use the Developer Tools. Edit: This is now linked in the help docs.
What are my options for storing data when using React Native? (iOS and Android) [closed]
Here’s what I’ve learned as I determine the best way to move forward with a couple of my current app projects. Async Storage (formerly “built-in” to React Native, now moved on its own) I use AsyncStorage for an in-production app. Storage stays local to the device, is unencrypted (as mentioned in another answer), goes away … Read more